United States · 1991–2020

Best time to visit
Morrisville.

September leads for comfortable weather in Morrisville: typically 27.3°C by day, 13.8°C at night, with 109 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high27.3°C

Typical low13.8°C

Rain in September109 mm

Comfort

September

September · May · October

74climate match

Beach

August

August · July · June

72climate match

Outdoors

October

October · April · September

76climate match

The weakest month is January, scoring 5 against September’s 74 — days reach only 6.2°C, 18° below the 24°C the score treats as ideal, and nights drop to -5.6°C.

Month by month

The whole year,
without the guesswork.

The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.

Jan

56.2° / -5.6°

Feb

108.7° / -3.7°

Mar

3014.2° / 1.2°

Apr

5219.7° / 6.4°

May

7124.4° / 12.4°

Jun

6129.1° / 17.3°

Jul

5231.6° / 19.5°

Aug

5831.3° / 18.5°

Sep

7427.3° / 13.8°

Oct

6321° / 7°

Nov

3113.9° / 1.3°

Dec

78° / -3.4°

Monthly climate evidence for Morrisville — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	6.2°C	-5.6°C	58 mm	5.7	9 h 50	5	Strong coverage
February	8.7°C	-3.7°C	59 mm	5.9	10 h 45	10	Strong coverage
March	14.2°C	1.2°C	91 mm	8.6	11 h 50	30	Strong coverage
April	19.7°C	6.4°C	125 mm	8.9	13 h 06	52	Strong coverage
May	24.4°C	12.4°C	150 mm	10.3	14 h 10	71	Strong coverage
June	29.1°C	17.3°C	125 mm	9.3	14 h 44	61	Strong coverage
July	31.6°C	19.5°C	117 mm	6.9	14 h 31	52	Strong coverage
August	31.3°C	18.5°C	94 mm	6.3	13 h 36	58	Strong coverage
September	27.3°C	13.8°C	109 mm	6.2	12 h 23	74	Strong coverage
October	21°C	7°C	97 mm	7.2	11 h 10	63	Strong coverage
November	13.9°C	1.3°C	86 mm	6.8	10 h 06	31	Strong coverage
December	8°C	-3.4°C	68 mm	5.9	9 h 35	7	Strong coverage

What has changed

Morrisville runs +0.4°C
on the 1961–1990 baseline.

Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.

Jan

+0.9

Feb

+0.4

Mar

+1.1

Apr

-0.7

May

-0.2

Jun

+0.8

Jul

+0.2

Aug

-0.5

Sep

+1.1

Oct

0.0

Nov

+0.4

Dec

+1.8

September daytime highs, 2011–2025. Last recorded: 29.0°C.

Records at BOLIVAR 1 NE, 1905–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	25.0°C24 Jan 1950	-31.7°C13 Jan 1912	90 mm11 Jan 2020	198 mm1916 · driest 0 mm in 1919	109
February	30.0°C16 Feb 1921	-28.3°C1 Feb 1979	115 mm23 Feb 1985	175 mm1985 · driest 0 mm in 2006	110
March	32.2°C21 Mar 1916	-21.7°C7 Mar 1943	84 mm29 Mar 1988	286 mm1927 · driest 9 mm in 1956	110
April	33.9°C19 Apr 2006	-8.9°C5 Apr 1920	117 mm30 Apr 2017	306 mm1994 · driest 19 mm in 1949	108
May	37.8°C31 May 1913	-6.1°C7 May 1989	137 mm22 May 1989	373 mm1943 · driest 20 mm in 1951	108
June	40.0°C29 Jun 1952	3.9°C5 Jun 1921	148 mm17 Jun 2015	367 mm1928 · driest 7 mm in 1922	108
July	46.1°C14 Jul 1954	6.7°C21 Jul 1970	140 mm12 Jul 2000	411 mm1958 · driest 4 mm in 1970	111
August	42.2°C5 Aug 1913	2.2°C29 Aug 1988	120 mm6 Aug 2017	296 mm1944 · driest 0 mm in 1913	109
September	42.2°C4 Sep 1913	-7.2°C24 Sep 1989	234 mm15 Sep 1914	463 mm1993 · driest 9 mm in 1952	111
October	36.7°C1 Oct 1910	-8.3°C29 Oct 1910	123 mm10 Oct 1919	359 mm1919 · driest 5 mm in 1906	111
November	30.6°C3 Nov 1922	-18.3°C29 Nov 1989	89 mm14 Nov 1985	260 mm1985 · driest 5 mm in 1989	111
December	25.0°C26 Dec 2025	-28.3°C24 Dec 1989	104 mm27 Dec 2015	253 mm2015 · driest 3 mm in 2025	109

Typical days per month at BOLIVAR 1 NE, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	26	2	2
February	<1	0	22	2	1
March	2	0	14	3	<1
April	7	<1	4	4	0
May	16	3	<1	5	0
June	26	14	0	4	0
July	30	22	0	4	0
August	29	20	0	3	0
September	21	10	0	3	0
October	9	1	4	3	0
November	1	0	14	3	<1
December	0	0	24	2	<1

The best month has moved. On the 1961–1990 numbers the strongest month here was May (scoring 78); on 2011–2025 it is September (78). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in BOLIVAR 1 NE’s record sorted by what it was actually like, rather than averaged
Month	Warm & dry days	Wet days	Washouts	Week with 3+ wet days	Daytime mean has ranged
January	2%	17%	5%	13%	3.4–10.0°C
February	6%	20%	6%	17%	4.8–12.6°C
March	22%	25%	10%	27%	10.2–18.4°C
April	42%	29%	13%	34%	17.4–23.1°C
May	59%	32%	14%	40%	22.3–27.2°C
June	69%	30%	13%	35%	27.3–31.5°C
July	79%	21%	9%	18%	29.9–34.1°C
August	79%	21%	9%	20%	29.3–34.2°C
September	74%	22%	11%	23%	25.3–30.7°C
October	53%	22%	9%	23%	19.1–24.6°C
November	18%	20%	8%	17%	11.2–16.8°C
December	3%	18%	7%	13%	5.2–11.3°C

A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.

1906Each stripe is one year’s mean temperature against the 97-year average. Warmest: 1938. Coolest: 1917.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4399126
NOAA station: USC00230789 · BOLIVAR 1 NE
Station distance: 15.4 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 29 usable years
Daylight: Calculated from latitude 37.48°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Important limit: Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.

These places read the same station, so their numbers are identical — distance from BOLIVAR 1 NE is what differs

Bolivar→Pleasant Hope→Fair Play→Halfway→Aldrich→Goodnight→

Or put two places side by side: Morrisville vs Bolivar

Best time to visitMorrisville.